81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
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#include "IRremote.h"
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#include "IRremoteInt.h"
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//==============================================================================
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// L GGGG
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// L G
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// L G GG
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// L G G
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// LLLLL GGG
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//==============================================================================
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#define LG_BITS 28
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#define LG_HDR_MARK 8000
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#define LG_HDR_SPACE 4000
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#define LG_BIT_MARK 600
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#define LG_ONE_SPACE 1600
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#define LG_ZERO_SPACE 550
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#define LG_RPT_LENGTH 60000
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//+=============================================================================
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#if DECODE_LG
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bool IRrecv::decodeLG (decode_results *results)
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{
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long data = 0;
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int offset = 1; // Skip first space
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// Check we have the right amount of data
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if (irparams.rawlen < (2 * LG_BITS) + 1 ) return false ;
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// Initial mark/space
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if (!MATCH_MARK(results->rawbuf[offset++], LG_HDR_MARK)) return false ;
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if (!MATCH_SPACE(results->rawbuf[offset++], LG_HDR_SPACE)) return false ;
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for (int i = 0; i < LG_BITS; i++) {
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if (!MATCH_MARK(results->rawbuf[offset++], LG_BIT_MARK)) return false ;
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if (MATCH_SPACE(results->rawbuf[offset], LG_ONE_SPACE)) data = (data << 1) | 1 ;
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else if (MATCH_SPACE(results->rawbuf[offset], LG_ZERO_SPACE)) data = (data << 1) | 0 ;
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else return false ;
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offset++;
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}
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// Stop bit
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if (!MATCH_MARK(results->rawbuf[offset], LG_BIT_MARK)) return false ;
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// Success
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results->bits = LG_BITS;
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results->value = data;
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results->decode_type = LG;
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return true;
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}
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#endif
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//+=============================================================================
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#if SEND_LG
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void IRsend::sendLG (unsigned long data, int nbits)
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{
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// Set IR carrier frequency
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enableIROut(38);
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// Header
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mark(LG_HDR_MARK);
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space(LG_HDR_SPACE);
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mark(LG_BIT_MARK);
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// Data
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for (unsigned long mask = 1UL << (nbits - 1); mask; mask >>= 1) {
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if (data & mask) {
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space(LG_ONE_SPACE);
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mark(LG_BIT_MARK);
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} else {
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space(LG_ZERO_SPACE);
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mark(LG_BIT_MARK);
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}
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}
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space(0); // Always end with the LED off
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}
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#endif
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